Si alloy powder for negative electrode
AssigneeDaido Steel Co., Ltd.
InventorsYuta Kimura, Kyohei Shimomura, Hiroyuki Ohisa
Life of this patent
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Abstract
A Si alloy powder for a negative electrode, the Si alloy powder including: a Si phase; a SiX compound phase; and at least one selected from the group consisting of a SnY compound phase and a AlY compound phase, in which the element Y in the SnY compound phase and the AlY compound phase includes at least one element selected from the group consisting of Cu, Fe, Ni, Cr, Co, Mn, Zr, and Ti, the Si alloy powder has an average particle diameter of 30 μm or less, and an amount of the Si phase in an entire Si alloy is 30 mass % to 95 mass %.
Claims7
A Si alloy powder for a negative electrode, the Si alloy powder comprising:
- a Si phase;
- a SiX compound phase;
- and
- at least one selected from the group consisting of a SnY compound phase and a AlY compound phase, wherein
- the element Y in the SnY compound phase and the AlY compound phase comprises at least one element selected from the group consisting of Cu, Fe, Ni, Cr, Co, Mn, Zr, and Ti,
- the Si alloy powder has an average particle diameter of 30 μm or less, and
- an amount of the Si phase in an entire Si alloy is 30 mass % to 95 mass %,
- wherein the element X in the Six compound phase comprises at least one element selected from the group consisting of B, C, Mg, Ca, and V.
A Si alloy powder for a negative electrode, the Si alloy powder comprising:
- a Si phase;
- a SiX compound phase;
- and
- at least one selected from the group consisting of a SnY compound phase and a AlY compound phase, wherein
- the element Y in the SnY compound phase and the AlY compound phase comprises at least one element selected from the group consisting of Cu, Fe, Ni, Cr, Co, Mn, Zr, and Ti,
- the Si alloy powder has an average particle diameter of 30 μm or less, and
- an amount of the Si phase in an entire Si alloy is 30 mass % to 95 mass %,
- wherein the element X in the SiX compound phase comprises at least one element selected from the group consisting of Sr, Y, Nb, Mo, and Ba.
A Si alloy powder for a negative electrode, the Si alloy powder comprising:
- a Si phase;
- a SiX compound phase;
- and
- at least one selected from the group consisting of a SnY compound phase and a AlY compound phase, wherein
- the element Y in the SnY compound phase and the AlY compound phase comprises at least one element selected from the group consisting of Cu, Fe, Ni, Cr, Co, Mn, Zr, and Ti,
- the Si alloy powder has an average particle diameter of 30 μm or less, and
- an amount of the Si phase in an entire Si alloy is 30 mass % to 95 mass %,
- wherein the element X in the Six compound phase comprises at least one element selected from the group consisting of Ta, W, La, Ce, and Nd.
A Si alloy powder for a negative electrode, the Si alloy powder comprising:
- a Si phase;
- a SiX compound phase;
- and
- at least one selected from the group consisting of a SnY compound phase and a AlY compound phase, wherein
- the element Y in the SnY compound phase and the AlY compound phase comprises at least one element selected from the group consisting of Cu, Fe, Ni, Cr, Co, Mn, Zr, and Ti,
- the Si alloy powder has an average particle diameter of 30 μm or less, and
- an amount of the Si phase in an entire Si alloy is 30 mass % to 95 mass %,
- wherein the element X in the SiX compound phase comprises at least one element selected from the group consisting of Sm, Hf, Ru, and Cu.
Dependencies are inferred from the claim text.